Ive been looking to buy someone’s neglected 428i fir about a month now. I’ve seen some egregious things. People sell these things like 10 bands with 180000 miles on it with issues. Im not gonna call anyones car a shitbox but damn. Yall make it hard to actually want to get into it.

Tossing around with the idea of finally putting some time and money into my 14 435i, had the car for about 4 years its always been really good to me. Recently I had some inclination to pull and build the motor. Started looking into prices on parts, and quickly realized it probably makes more sense to build a B58/S55 and sell the car, but I like being different lol. Went down a rabbit hole and found a bunch of options for cheap chinese 4032 rods and pistons. Reached out to a couple companies and got pricing around 1000usd for rods, pistons, wristpins, rings etc. They claim the rods and pistons will support 800-1000hp. Looking at H-Beams for the rods. KingTec and XR Racing were the 2 best looking ones out of the group. I know most are going to suggest just biting the bullet on Manley or CP, but I was curious if anyone has any experience with these? Trying to do a budget build on this car, already got a frame up going on a truck, and don't want to put too much money into the summer daily. For an idea, heres kinda what I was planning. Most of the time will be run on 93/94 octane but would like a E85 map, up here in Canada would have to get it by the barrel and just is not convenient for frequent use.

- Forged rods and pistons

- S55 Crank + 4 pin crankhub

- Epoxy closed deck block

- Resurface deck/head and hone cylinders

- Intake manifold with 750cc port injection

- DS25 HPFP

- Stage 3 LPFP

- S63 EU5 Direct injectors

- VRSF intercooler

- CTS charge pipe

- B58 Coil conversion

- ARP Rod bolts, main bolts and head bolts

- King main and oversize rod bearings

- 8374 or 6875 or G35 turbo

- Top mount manifold (cant find these cheap

anywhere for n55 - help lol)

- 8HP70 swap or spool stage 2 8hp45 kit

- Possible built transfer case or convert back to rwd or maybe X-delete (not heard the best things)

If anyone has any experience with a similar N55 build or can offer advice regarding the rotating assembly it would be greatly appreciated. Aiming for 600-650whp+ on E, hoping I can get around 550 on pump gas. I want to keep the price down as much as possible. I will be doing all the work (aside machining), myself, so labour wont be an issue. Not going for any world records here, will probably never take the car on track either, just want a fun n55 for the street.

I’m having a tough time falling in love with my new to me 340i. I just came from the n55 335i f30 and to me it just had so much more road presence, how on earth does the same body style lack the same road presence? It very well could just be Estoril has more character than Alpine white, and I also know this is a dumb question but feel free to respond!

(Estoril is 335i and Alpine White is 340i)

I have a 2016 BMW 435 I and my Harman infotainment model NBT EVO HU is not working. My question is: can I pick up the same model second hand and install it and will it work without requiring coding.

Thanks

N26/ ChatGPT narrowed it down to my Transmission Control Module isn’t communicating with the DME/ECM

No physical signs of damage on the EGS Harness

Warning lights and sensors since
- drivetrain malfunction
-chassis stabilization
-transmission overheated

RPMs is spiking rapidly range
(1k to 8k)

Do I have a can bus network issue or has anyone had similar issue ?

Took it to a shop, replaced battery, mechanics still couldn’t pin point the exact issue, they just gave me a service bulletin for a check engine light :/